vertexの履歴
頂点
Angles which are vertical share a vertex.
https://www.khanacademy.org/math/geometry/logical-reasoning/e
西小倉事典
(9773 keywords)
(9773 keywords)
頂点
Angles which are vertical share a vertex.
https://www.khanacademy.org/math/geometry/logical-reasoning/e
